Your logs are telling me, that you have attempted to install Plex server to the root folder of drive J:
Don’t do that.
Uninstall it.
Then re-install it and after starting the installation .exe click on ‘Options’ and verify that it points to C:\Program Files (x86)\Plex\Plex Media Server\
If it doesn’t, paste the correct path into there.
The Plex program folder is only 155 MB large.
What you probably want to do, is to move the Plex data folder to drive J:
but let’s do that later, after Plex server is up and running.
